Bump black from 23.1.0 to 24.3.0 in /server

Bumps [black](https://github.com/psf/black) from 23.1.0 to 24.3.0.
- [Release notes](https://github.com/psf/black/releases)
- [Changelog](https://github.com/psf/black/blob/main/CHANGES.md)
- [Commits](psf/black@23.1.0...24.3.0)

---
updated-dependencies:
- dependency-name: black
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

server/requirements.txt

@@ -5,7 +5,7 @@ astroid==2.13.5
 async-timeout==4.0.2
 attrs==22.1.0
 backports.zoneinfo==0.2.1
-black==23.1.0
+black==24.3.0
 certifi==2023.7.22
 cffi==1.15.1
 charset-normalizer==2.1.1